Apparatus for spraying glass, etc.



J. H. JUERS Nov. 10,1931.

APPARATUS FOR SPRAYING GLASS, ETC

Filed July lnl lll lll I I Hul I Summon gm, M M M Patented Nov. 10, 1931 UNITED STATES PATENT OFFICE JOHN HENRY J'UERS, OF PASSAIC, NEW JERSEY, ASSIGNOR TO TRIPLEX SAFETY GLASS COMPANY OF NORTH AMERICA, NEW YORK, N. Y., A CORPORATION OF DELAWARE APPARATUS FOR SPRAYING GLASS, ETC.

Application filed July 25,

This invention has been developed with particular reference to the spraying of glass preliminary to its assemblage with a sheet of celluloid or similar material in the manufacture of what is known as laminated or non-shatterable glass. In such manufacture the glass or the celluloid or both is or are commonly sprayed with a solution which promotes the adhesion of the glass and celluloid.

After the preparation of the glass and the celluloid, the two sheets ofglass and the interposed sheet of celluloid are assembled under heat and pressure. It has been found necessary, in order to accomplish satisfactory results, that the solution be applied with as nearly perfect uniformity as it is possible to attain. The liquid is supplied under pressure from a suitable source through a spray head which is reciprocated transversely over the glass or material to be coated while the latter is moved longitudinally at a uni-' form rate. It has been attempted to effect the delivery of the solution through a spray head which is oscillated in the arc of a circle by means'of a crank and pitman, but it has been found that with such means the spray v coat is relatively heavy at and near the edges of the glass and relatively thin in the middle. It is the object of this invention to provide apparatus by which the spray head shall be supported and reciprocated in such manner as to effect substantially uniform distribution of the solution over all parts of the glass as the glass is moved forward at a uniform rate,

' and it has been found that this object can be 1929. serial'No. 380,898.

Figure 2 is a view of the same in side elevation.

Figure 3 is a view of the same as seen from above.

Figure 4 is a detail View partly in section and on a larger scale.

The spray head a may be of any usual or suitable construction. A well knownform is shown in the drawings and is represented as being connected through a flexible pipe a with the source of liquid to be sprayed, through a similar flexible pipe a' with a source of air under pressure,- and throu h a similar flexible pipe at with a source 0 air under more moderate pressure. The spray head is pivotally supported by a holder 6 which is arranged to slide on slide rods 0 supported by the frame d. The movement of the spray head is effected most conveniently by a crank, indicated at f, and operated from a motor f through suitable reducing gears indicated at F. The crank pin f is connected through a link or pitman g with a slide 9 which is mounted on slide rods 9 so as to have movement in a rectilinear path. A swinging arm h, pivoted at k on the frame d, is connected with the slide g through a pin and slot connection indicated at k The arm it has an extension k with a reduced portion 71 free to move axially in a part b of the holder 12. By such means the spray head (1 receives motion along the chord of the arc of the circle entered at b but with the axis of the spray cone always radial to the same center, as indicated by broken lines in Fig. 1. As shown in Figure 4 the spray head a is mounted upon the part b of the carrier 6, which part is engaged by the reduced portion 71 of the extension h of the arm h. This part b is secured to a spindle b which swivels freely in the main part b of the carrier. The spray head is therefore free to swing in the plane in which it is also reciprocated in a recti linear path.

It will be understood that the glass or other material to be sprayed is moved forward under the spray at a uniform rate and it has been found that when the spray head is reciprocated as described on the chord of the arc of the circle centered on the pivot of the swinging arm by which the spray head is actuated while the axis of the cone in which the spray is delivered by the spray head is radial to the same center, the support of the spray head on a holder which moves on the rectilinear guide rods and by the pivoted mounting of the spray head on the holder, the coat of spray on the glass or material is of substantially uniform thickness from edge to edge.

I claim as my invention:

1. An apparatus for spraying glass, etc. comprising a spray head, means to reciprocate the spray head including a swinging arm, and means to guide the spray head on the chord of the are centered on the pivot of the swinging arm with its axis radial to the same center, whereby the spray head is reciprocated in a rectilinear path parallel with the plane in which the arm swings.

2. An apparatus for spraying glass, etc. comprising a spray head, a holder on which the spray head is pivotally mounted, a rectilinear slide rod on which the holder is supported, a swinging arm inoperative relation with the holder, and means to oscillate the arm whereby the spray head is reciprocated in a rectilinear path-and at the same time is free to swing in the plane of rectilinear movement.

3. An apparatus for spraying glass, etc. comprising a spray head, a holder on which the spray ead is pivotally mounted, a rectilinear slide rod on which the holder is supported, a swinging arm in operative relation with the holder, a crank, and an operative connection between the crank and the swinging arm. I

4. An apparatus for spraying glass, etc. comprising a spray head, a holder on which the spray head is pivotally mounted, arectilinear slide rod on which the holder is supported, a swinging arm in o erative relation with the holder, a secon slide rod, a

slide on the last named slide rod, a pin and slot connection between the swinging arm and said slide, and means to reciprocate the slide.

This=s ecification signed this" 19th day of July, A, 1929.

JOHN HENRY JUERS.

as accomplished by 

